CN207889052U - A kind of straight backform tool - Google Patents
A kind of straight backform tool Download PDFInfo
- Publication number
- CN207889052U CN207889052U CN201820244161.9U CN201820244161U CN207889052U CN 207889052 U CN207889052 U CN 207889052U CN 201820244161 U CN201820244161 U CN 201820244161U CN 207889052 U CN207889052 U CN 207889052U
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- cavity
- mold
- support plate
- mould
- rear mold
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Abstract
The utility model discloses a kind of straight backforms to have comprising preceding mould, rear mold, mould support plate and ejector pin component.The front cavity of preceding mode spacing setting connect the cavity to be formed for shaped article with the spaced rear cavity of rear mold.Mould support plate is removably connected to rear mold, several mold inserts is installed on mould support plate, and each mold insert corresponds to each product setting respectively, mold insert is extended to from rear mold in cavity, for being connected to product.The one end of mould support plate far from rear mold is equipped with accommodating cavity.Ejector pin component includes ejector retainner plate and several thimbles, ejector retainner plate sliding is set in accommodating cavity, and each thimble corresponds to each mold insert setting respectively, and one end of each thimble is fixedly arranged on ejector retainner plate, the other end of thimble sequentially passes through mould support plate and rear mold to being located in cavity, for being connected to product.Ejector retainner plate is used in accommodating cavity along being moved towards the direction of rear mold, to drive thimble to move and eject product from rear cavity.The demolding structure of the straight backform tool is simple, and can be easily by product stripping.
Description
The utility model is related to technical field of mold more particularly to a kind of straight backform tools.
Background technology
Injection molding process be injecting products (such as：Plastic part, hardware) common method, injection molding process is logical
Often these process procedures are taken out including molding, injection, pressurize, cooling, die sinking, de-molding injection molded products.
In injection molding process, usually there is a situation where that part injection product structure is more complicated, such as with back-off
The case where injecting products of structure, this kind of product is in depanning, is also relatively difficult, needs that accessory additionally is arranged to help it
Demoulding.Currently, the design of most mold releasability structure generally use slipper block loose core, but since this mode is needed in mould
The internal mode for increasing sliding block of tool, this not only adds the complexity of mould structure design, but also need to largely occupy in mold
The space in portion becomes larger so as to cause the overall volume of mold, and then die cost is caused to increase significantly.
Utility model content
The utility model embodiment discloses a kind of straight backform tool, and demolding structure is simple, is conducive to reduce mold entirety
Volume, to reduce Mold Making cost.
In order to achieve the above object, the utility model provides a kind of straight backform tool comprising
Preceding mould, the preceding mould are equipped with several spaced front cavitys；
Rear mold, the rear mold are equipped with the rear cavity of several correspondences front cavity setting towards the end face of the preceding mould, respectively
The rear cavity connects the cavity to be formed for shaped article with corresponding each front cavity respectively；
Mould support plate, the mould support plate are removably connected to the one end of the rear mold far from the preceding mould, the mold
Several mold inserts are installed on supporting plate, and each mold insert corresponds to each product setting respectively, the mold insert is far from the mold
One end of supporting plate is extended to from the rear mold in the cavity, and for being connected to the product, the mould support plate is far from described
One end of rear mold is equipped with accommodating cavity, and the equal position of projection of each front cavity and each rear cavity on the mould support plate
In in the accommodating cavity；And
Ejector pin component, the ejector pin component include ejector retainner plate and several thimbles, and the ejector retainner plate sliding is set to described accommodating
Intracavitary, each thimble corresponds to each mold insert setting respectively, and one end of each thimble is fixedly arranged on the ejector retainner plate,
The other end of the thimble sequentially passes through the mould support plate and the rear mold is extremely located in the cavity, described for being connected to
Product；The ejector retainner plate is used in the accommodating cavity along being moved towards the direction of the rear mold, to drive the thimble to move
And the product is ejected from the rear cavity.
As an alternative embodiment, in the utility model embodiment, set at the upper surface center of the mold insert
There is through-hole, the other end of the thimble is stretched out and extended in the cavity from the through-hole to abut with the center of the product.
As an alternative embodiment, in the utility model embodiment, the straight backform tool further includes the first bullet
Property part, one end of first elastic component and the mould support plate are affixed, the other end of first elastic component and the rear mold
One end far from the preceding mould is affixed.
As an alternative embodiment, in the utility model embodiment, the mould support plate is towards the thimble
One end of plate is equipped with limited block, and the limited block with the ejector retainner plate for abutting, to limit the ejector retainner plate in the appearance
Intracavitary is set along the movement position towards the direction of the rear mold.
As an alternative embodiment, in the utility model embodiment, the ejector retainner plate is towards the rear mold
One end is equipped with the second elastic component, and one end and the mould support plate far from the ejector retainner plate of second elastic component are affixed.
As an alternative embodiment, in the utility model embodiment, the straight backform tool further includes that sliding connects
The stretching structure being connected between the preceding mould and the rear mold, the stretching structure is for connecting or separating the preceding mould and described
Rear mold.
Compared with prior art, the utility model embodiment has the advantages that：
Straight backform tool provided by the utility model, by the mold insert of fixed several corresponding products settings on mould support plate,
And so that mold insert is extended to from rear mold in cavity and abutted with product, while being slidably connected to mould support plate by the way that ejector retainner plate is arranged
In accommodating cavity, and the thimble of several corresponding mold inserts settings is set on ejector retainner plate, is passed through in mould support plate to cavity using thimble
It is abutted with product, to which when edge moves ejector retainner plate towards the direction of rear mold in the accommodating cavity of mould support plate, which can
Under the drive of ejector retainner plate, also edge is moved towards the direction of rear mold, and then realizes the effect for ejecting product using thimble.This is straight
Backform tool can not only be realized product stripping easily, solve the problems, such as the back-off of existing mold product, and overall structure is simple
It is compact, without additionally increasing new sliding block assisted demoulding, being conducive to the overall volume for reducing mold and reducing being fabricated to for mold
This.
Description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the structural schematic diagram of straight backform tool disclosed in the utility model embodiment；
Structural schematic diagram when Fig. 2 is the demoulding of straight backform tool disclosed in the utility model embodiment.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In the present invention, term "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outside",
" in ", "vertical", "horizontal", " transverse direction ", the orientation or positional relationship of the instructions such as " longitudinal direction " be orientation based on ... shown in the drawings or
Position relationship.These terms are not intended to limit indicated primarily to preferably describe the utility model and embodiment
Device, element or component must have particular orientation, or constructed and operated with particular orientation.
Also, above-mentioned part term is other than it can be used to indicate that orientation or positional relationship, it is also possible to for indicating it
His meaning, such as term "upper" also are likely used for indicating certain relations of dependence or connection relation in some cases.For ability
For the those of ordinary skill of domain, the concrete meaning of these terms in the present invention can be understood as the case may be.
In addition, term " installation ", " setting ", " being equipped with ", " connection ", " connected " shall be understood in a broad sense.For example, it may be solid
Fixed connection, is detachably connected or monolithic construction；Can be mechanical connection, or electrical connection；It can be directly connected, either
Indirectly connected through an intermediary, or it is two connections internal between device, element or component.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In addition, term " first ", " second " etc. are mainly used for distinguishing different devices, element or component (specifically
Type and construction may it is identical may also be different), be not intended to show or implies meaning showing device, element or component
Relative importance and quantity.Unless otherwise indicated, the meaning of " multiple " is two or more.
A kind of straight backform tool that the utility model embodiment provides is described in detail below with reference to attached drawing.
Also referring to Fig. 1 and Fig. 2, for a kind of structural schematic diagram for straight backform tool that the utility model embodiment provides.
The straight backform tool includes preceding mould 1, rear mold 2, mould support plate 3 and ejector pin component.The preceding mould 1 is equipped with several spaced preceding moulds
Benevolence (not shown).The rear mold 2 is equipped with the rear cavity 21 of several corresponding front cavity settings, each rear cavity towards the end face of preceding mould 1
21 connect the cavity (not shown) to be formed for shaped article 5 with corresponding front cavity respectively.Mould support plate 3 is removably connected to
The one end of rear mold 2 far from preceding mould 1 is installed with several mold inserts 31 on mould support plate 3, and each mold insert 31 corresponds to each product 5 respectively
Setting, the one end of mold insert 31 far from mould support plate 3 are extended to from rear mold 2 in cavity, and for being connected to product 5, mould support plate 3 is remote
One end from rear mold 2 is equipped with accommodating cavity 32, and each equal position of the projection of front cavity and each rear cavity 21 on mould support plate 3
In in accommodating cavity 32.Ejector pin component includes ejector retainner plate 42 and several thimbles 43, and the sliding of ejector retainner plate 42 is set in accommodating cavity 32, every
Thimble 43 corresponds to the setting of each mold insert 31 respectively, and one end of every thimble 43 is fixedly arranged on ejector retainner plate 42, thimble 43 it is another
End sequentially passes through mould support plate 3 and rear mold 2 in cavity, and for being connected to product 5, which is used in accommodating cavity
Along being moved towards the direction of rear mold 2 in 32, to drive thimble 43 to move and eject product 5 from rear cavity 21.
The straight backform tool can be applied to the more complex product 5 of injection molding structure, such as the production of the injection molding with back-off structure
Product.Wherein, straight backform tool can at least one product 5 of injection molding simultaneously, 5 quantity of product of injection molding can be one,
It two, three etc., is not limited thereto.It is understood that since each mold insert 31 is set with the one-to-one correspondence of corresponding product 5
It sets, therefore the quantity of mold insert 31 is equal with the quantity of product 5.
In demoulding, firstly, it is necessary to mould support plate 3 and rear mold 2 be separated, at this point, the mold insert 31 on mould support plate 3 and position
It is detached in the product 5 in cavity；Then, then by preceding mould 1 and rear mold 2 separate, i.e., front cavity and rear cavity 21 separate, product 5
In in rear cavity 21；Finally, it pushes ejector retainner plate 42 to be moved towards the direction of rear mold 2, drives the movement of thimble 43 and by product 5 from rear
Mode 21 ejects.
In the present embodiment, nylon staple 6 is equipped between the preceding mould 1 and rear mold 2.When demoulding, in mould support plate 3 and rear mold 2
Before separating, preceding mould 1 and rear mold 2 are locked using nylon staple 6, before being conducive to mould 1 and rear mold 2 as a whole with mold support
Plate 3 separates so that with rear mold 2 relative displacement does not occur for preceding mould 1.
Further, for the ease of separating mould support plate 3 and rear mold 2, which further includes the first elastic component 23,
One end of first elastic component 23 and mould support plate 3 are affixed, and the other end and rear mold 2 of first elastic component 23 are affixed.Specifically,
During mold injection, which is compressed between mould support plate and rear mold.And in the mold releasability stage, when
After injection molding machine removes the power for being applied to straight backform tool, the pressure that the first elastic component 23 is subject to reduces, and the first elastic component 23 occurs
Mould support plate 3 and rear mold 2 are separated after elastic deformation, so that the mold insert 31 on mould support plate 3 divides with the product 5 in cavity
It opens.Preferably, which can be spring.
Using above-mentioned design, during mold injection, mold support can not only be effectively ensured using first elastic component
The being completely embedded property of plate and rear mold also occurs elastic deformation using first elastic component and realizes during mold releasability
Mould support plate and rear mold are separated, at the same can also effectively buffer using first elastic component that the mould support plate and rear mold separate by
Power.
Further, after mould support plate 3 is separated with rear mold 2, in order to prevent rear mold 2 under gravity again with mould
Have supporting plate 3 to be bonded, several banking pins (not shown) are additionally provided between mould support plate 3 and rear mold 2.Mold is limited using banking pin
At a distance from the relative movement of supporting plate 3 and rear mold 2 so that mould support plate 3 and rear mold 2 can be always maintained at after separation it is certain away from
From, to ensure mold insert 31 detach product 5 after will not secondary abuttings product 5 and cause occur damage product 5 the case where.
In the present embodiment, for the ease of connecting or separating preceding mould 1 and rear mold 2, which further includes that the mouth of a river pushes away
Plate 7 and stretching structure 11, stripper plate 7 are arranged on the one end of preceding mould far from rear mold, and one end of the stretching structure 11 is affixed
In on stripper plate 7, the other end of stretching structure 11 is extended to from preceding mould 1 in rear mold 2, that is to say, that preceding mould 1 is logical with rear mold 2
Overstretching structure connects.Preferably, which can be pull rod.
Further, one end far from rear mold 2 on preceding mould 1 is equipped with first and is open (not shown), close to rear mold 2 on preceding mould 1
One end be equipped with the second opening (not shown), the first opening is through to the second opening and forms the first straight slot 12, the first straight slot 12 from
Second is open shrinks to the first opening, and rear mold 2 is towards being provided with the second straight slot 22 on one end of preceding mould 1, the first straight slot 12 with
Second straight slot 22 is correspondingly arranged, and the first straight slot 12 is connected to the second straight slot 22.The other end of stretching structure 11 is slidably connected to
First straight slot 12 and the second straight slot 22, that is, the other end of stretching structure 11 can the sliding in the first straight slot 12 and the second straight slot 22.
Specifically, when the other end of stretching structure 11 slides into from the first straight slot 12 in the second straight slot 22, stretching structure 11 is by preceding mould 1
And rear mold 2 connects；When the other end of stretching structure 11 is slidably disposed in the first straight slot 12, and stretching structure from the second straight slot 22
When 11 other end is connected in the first straight slot 12, stretching structure 11 can not continue opposite first straight slot 12 and slide, at this point, stretching
Mould 1 is toward the direction movement far from rear mold 2 before structure 11 drives, so that preceding mould 1 is separated with rear mold 2.
Using aforesaid way, it is open from second to the design of the first opening contraction using the first straight slot 12, it can be to stretching
Structure 11 plays position-limiting action, consequently facilitating mould 1 moves before stretching structure 11 drives, reaches and is easy to separate preceding mould 1 and rear mold 2
Purpose.
Further, after current mould 1 is separated with rear mold 2, since mold insert 31 is detached with product 5, and ejector retainner plate 42 can be
Sliding in accommodating cavity 32, therefore, at this time can by push ejector retainner plate 42 in the accommodating cavity 32 along the direction A towards rear mold 2 (i.e.
Direction shown in arrow in Fig. 1) movement, so that thimble 43 can be under the drive of ejector retainner plate 42 towards the direction A of rear mold 2
Movement, you can the ejection out of rear cavity 21 by product 5.Specifically, the sliding for the ease of ejector retainner plate 42 in accommodating cavity 32, should
Straight backform tool may also include Ejector Retainer Plate 41 and guide rod 44, and Ejector Retainer Plate 41 is set to ejector retainner plate 42 far from mould support plate 3
On on one side, one end of guide rod 44 and Ejector Retainer Plate 41 are affixed, and the other end of guide rod 44 passes through mould support plate 3 solid with rear mold 2
It connects.When the sliding in accommodating cavity 32 of ejector retainner plate 42, ejector retainner plate 42 can be slided along guide rod 44, to utilize guide rod 44
Guiding role can be played to ejector retainner plate 42, and then ejector retainner plate 42 can be effectively prevent the case where sliding offset occur.
Further, in order to limit sliding distance of the ejector retainner plate 42 in accommodating cavity 32, in mould support plate 3 towards ejector retainner plate
Limited block 421 is additionally provided on 42 one end.Specifically, when ejector retainner plate 42, which slides into, to be abutted with limited block 421, limited block 421
Ejector retainner plate 42 can be prevented to continue to move towards mould support plate 3, then at this point, the thimble 43 also stops continuing towards mould support plate 3
Direction is mobile and the ejection completely from rear cavity 21 by product 5, complete the demoulding of product 5.It is arranged using on mould support plate 3
The mode of limited block 421 not only can accurately limit the move distance of the ejector retainner plate 42, realize the complete ejection of product 5, simultaneously also
Can being conducive to generation damage after preventing ejector retainner plate 42 from directly being abutted with 3 long-term large area of mould support plate, (large area of such as plate face is fallen
Paint), to extend the service life of straight backform tool.
Further, which is hollow component comprising hollow portion 311.For the ease of 43 ejecting product 5 of thimble,
The center of the upper surface of each mold insert 31 is equipped with through-hole (not indicating), which is connected to the hollow portion 311 of mold insert 31, thimble
43 one end is fixedly arranged on ejector retainner plate 42, and the other end of thimble 43 extend out to position after the hollow portion 311 of mold insert 31 from through-hole
It in cavity, and is abutted with the center of product 5, utilizes mold insert 31 that can complete the centralized positioning to product 5 as a result, for follow-up top
Go out product 5 and buries basis.It is understood that every thimble 43 is arranged in a one-to-one correspondence with each mold insert 31.Due to thimble
43 are arranged in a one-to-one correspondence with mold insert 31, and therefore, the quantity of thimble 43 is equal with the quantity of mold insert 31, and the quantity of thimble 43 can be one
Root, two, three etc., be not limited thereto.
Further, after thimble 43 ejects product 5, its initial position is slid into start for the ease of ejector retainner plate 42
Second of injection moulding process is additionally provided with the second elastic component 45, one end of the second elastic component 45 between ejector retainner plate 42 and mould support plate 3
It is fixed on ejector retainner plate 42, the other end of the second elastic component 45 is fixed in across guide rod 44 on mould support plate 3.Specifically, when
Ejector retainner plate 42 slides against when limited block 421, and ejector retainner plate 42 under gravity, is moved along the direction opposite with direction A.
Since the second elastic component 45 has elastically-deformable effect, so, it is moved towards the direction opposite with direction A in ejector retainner plate 42
In the process, ejector retainner plate 42 can be acted on by the elastic force of the second elastic component 45, slowed down the speed of the movement of ejector retainner plate 42, thus prevented
Ejector retainner plate 42 slides into excessive velocities when being bonded with Ejector Retainer Plate 41 and generates larger impact force, and then extends straight backform tool
Service life.
Compared with prior art, the utility model embodiment has the advantages that：
Straight backform tool provided by the utility model, by the mold insert of fixed several corresponding products settings on mould support plate,
And so that mold insert is extended to from rear mold in cavity and abutted with product, while being slidably connected to mould support plate by the way that ejector retainner plate is arranged
In accommodating cavity, and the thimble of several corresponding mold inserts settings is set on ejector retainner plate, is passed through in mould support plate to cavity using thimble
It is abutted with product, to which when edge moves ejector retainner plate towards the direction of rear mold in the accommodating cavity of mould support plate, which can
Under the drive of ejector retainner plate, also edge is moved towards the direction of rear mold, and then realizes the effect for ejecting product using thimble.This is straight
Backform tool can not only be realized product stripping easily, solve the problems, such as the back-off of existing mold product, and overall structure is simple
It is compact, without additionally increasing new sliding block assisted demoulding, being conducive to the overall volume for reducing mold and reducing being fabricated to for mold
This.
A kind of straight backform tool disclosed in the utility model embodiment is described in detail above, tool used herein
Body example is expounded the principles of the present invention and embodiment, and the explanation of above example is only intended to help to understand
A kind of straight backform of the utility model has and its core concept；Meanwhile for those of ordinary skill in the art, according to this practicality
Novel thought, there will be changes in the specific implementation manner and application range, and to sum up, the content of the present specification should not be understood
For limitations of the present invention.
Claims (6)
1. a kind of straight backform tool, which is characterized in that it includes
Preceding mould, the preceding mould are equipped with several spaced front cavitys；
Rear mold, the rear mold is equipped with the rear cavity of several correspondences front cavity setting towards the end face of the preceding mould, each described
Rear cavity connects the cavity to be formed for shaped article with corresponding each front cavity respectively；
Mould support plate, the mould support plate are removably connected to the one end of the rear mold far from the preceding mould, the mould support plate
On be installed with several mold inserts, and each mold insert corresponds to each product setting respectively, and the mold insert is far from the mould support plate
One end extended in the cavity from the rear mold, for being connected to the product, the mould support plate is far from the rear mold
One end be equipped with accommodating cavity, and the projection of each front cavity and each rear cavity on the mould support plate is respectively positioned on institute
It states in accommodating cavity；And
Ejector pin component, the ejector pin component include ejector retainner plate and several thimbles, and the ejector retainner plate sliding is set in the accommodating cavity,
Each thimble corresponds to each mold insert setting respectively, and one end of each thimble is fixedly arranged on the ejector retainner plate, described
The other end of thimble sequentially passes through the mould support plate and the rear mold to being located in the cavity, for being connected to the production
Product；The ejector retainner plate is used in the accommodating cavity along being moved towards the direction of the rear mold, to drive the thimble movement simultaneously
The product is ejected from the rear cavity.
2. straight backform tool according to claim 1, which is characterized in that through-hole is equipped at the upper surface center of the mold insert,
The other end of the thimble is stretched out and extended in the cavity from the through-hole to abut with the center of the product.
3. straight backform tool according to claim 1 or 2, which is characterized in that the straight backform tool further includes the first elastic component,
One end of first elastic component and the mould support plate are affixed, and the other end of first elastic component and the rear mold are far from institute
One end of mould is affixed before stating.
4. straight backform tool according to claim 1 or 2, which is characterized in that the mould support plate is towards the ejector retainner plate
One end is equipped with limited block, and the limited block with the ejector retainner plate for abutting, to limit the ejector retainner plate in the accommodating cavity
Movement position of the interior edge towards the direction of the rear mold.
5. straight backform tool according to claim 1 or 2, which is characterized in that the ejector retainner plate is towards one end of the rear mold
It is equipped with the second elastic component, one end and the mould support plate far from the ejector retainner plate of second elastic component are affixed.
6. straight backform tool according to claim 1 or 2, which is characterized in that the straight backform tool further includes being slidably connected to
Stretching structure between the preceding mould and the rear mold, the stretching structure for connect or separate the preceding mould and it is described after
Mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820244161.9U CN207889052U (en) | 2018-02-09 | 2018-02-09 | A kind of straight backform tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820244161.9U CN207889052U (en) | 2018-02-09 | 2018-02-09 | A kind of straight backform tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207889052U true CN207889052U (en) | 2018-09-21 |
Family
ID=63542996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820244161.9U Expired - Fee Related CN207889052U (en) | 2018-02-09 | 2018-02-09 | A kind of straight backform tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN207889052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076317A (en) * | 2019-05-26 | 2019-08-02 | 深圳市宝田精工塑胶模具有限公司 | Ramp-roof structure and kirsite molding die including ramp-roof structure |
-
2018
- 2018-02-09 CN CN201820244161.9U patent/CN207889052U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076317A (en) * | 2019-05-26 | 2019-08-02 | 深圳市宝田精工塑胶模具有限公司 | Ramp-roof structure and kirsite molding die including ramp-roof structure |
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Granted publication date: 20180921 Termination date: 20190209 |